Graph object oriented model and query language: a semi-structured approach

Abstract

In an effort to design and develop a suitable platform for the next generation information systems, a new Graph Object Oriented database Model (GOOM) is proposed. In fact, the proposed model in its present definition is an improvement of our earlier work (S. Choudhury et al., 1998; 2000). The evolution is found to be absolutely essential in the interest of implementing the model and towards building a reliable Graph Query Language (GQL). We have introduced the concept of encapsulating homogeneous entities into semantic group while permitting the declaration of relationships amongst different semantic groups from various user-defined views. The proposed model aims at extracting the positive features of both object and relational data models besides providing a structured graphic representation. The paper emphasizes the mathematical foundation of the proposed graph language. In fact, the proposed GQL maintains a very similar interface to that of widely accepted SQL.